AT-264_1 Datasheet, PDF (1/3 Pages) Tyco Electronics – Digital Attenuator, 4-Bit, Single Control 30dB, 0.5-2.0 GHz

Digital Attenuator, 4-Bit, Single Control
30 dB, 0.5-2.0 GHz
Features
• Positive Single Control
• 2-dB Attenuation Steps to 30 dB
• Low DC Power Consumption
• TSSOP-16 Plastic Package
Description
M/A-COM’s AT-264 is a 4-bit, 2-dB step GaAs MMIC
digital attenuator in a low cost TSSOP-16 surface
mount plastic package. The AT-264 is ideally suited for
use where high accuracy, very low power consumption
and low intermodulation products are required. Typical
applications include radio, cellular, wireless LANs, GPS
equipment and other gain/level control circuits.
The AT-264 is fabricated using a mature 1 micron
GaAs MESFET process. The process features full chip
passivation for increased performance and reliability.
Ordering Information
Part Number
AT-264
AT-264TR*
Package
TSSOP 16-Lead Plastic Package
Tape and Reel
* Reference Application Note M513 for reel size information.
Absolute Maximum Ratings ¹
Parameter
Input Power
50 MHz
500 - 2000 MHz
Control Voltage
Operating Temperature
Storage Temperature
Absolute Maximum
+27 dBm
+34 dBm
-0.5 V < V_C < 8.5 V
-40°C to +85°C
-65°C to +150°C
1. Exceeding any one or combination of these limits may cause
permanent damage to this device.
Functional Schematic ^2,3
AT-264
V6
Vs
16
15
14
13
12
11
10
9
1
16
8
4
2
1
2
3
4
5
6
7
8
2. Blocking caps are required on all RF ports (39 pF used
for data measurements).
3. Vs = +5 ± 0.2 VDC must be applied at RF1 or RF2 using
a 10 Kohm or greater pull-up resistor.
Pin Configuration
Pin No.
1
2
3
4
5
6
7
8
Function
Ground
Ground
VC1
VC2
VC3
VC4
Ground
Ground
Pin No.
9
10
11
12
13
14
15
16
Function
RF2
Ground
Ground
Ground
Ground
Ground
Ground
RF1
1
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
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Visit www.macom.com for additional data sheets and product information.